PC2-3200 Ram Upgrade ?

[Noyb]

Can I upgrade the RAM in this computer to a PC2-4300 - And would it help any ?
http://h10025.www1.hp.com/ewfrf/wc/...cc=us&product=459896&dlc=en&docname=c00306962

Mobo…
http://h10025.www1.hp.com/ewfrf/wc/...cc=us&product=459896&dlc=en&docname=c00277427

I’m trying to decide if I should just add another gig of PC2-3200, or move up to PC2-4300 (1 or 2 gig)
… Or maybe a Raptor.

What’s the best Bang for the Buck and the best place to start as toy funds arrive.??
I don’t do Gaming, but I use Photoshop and Premiere a lot.
Thanks.